The other critical update related to its web address identification system, DNS Service.

“This vulnerability affects DNS servers that allow attackers to issue lookup requests for another domain name in a way that would cause the DNS server to request the answer from a malicious DNS server,” it explained.

The flaw was unlikely to be exploited, but DNS servers connected to a corporate network as a cache or relay service were more vulnerable than internet-facing servers, according to Microsoft.

Other flaws likely to be exploited in the next month included a Windows elevation of privilege vulnerability, a flaw in its diagram program, Visio, and a cross site scripting (XSS) flaw in its Remote Desktop Web Access Login Page.

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